Vehicle Nissan Note engine. HR15-DE.
The knocking appeared after cleaning the nozzles and walls of the intake manifold from accumulated deposits. Cleaning was carried out with an aerosol carburetor cleaner. On a cold tap it is enough sonorous, in process of warming up becomes not such sharp. Before the procedure, the engine whispered, no unnecessary sounds. The vortex damper does not rattle, checked. What could it be?
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#Dvc #stalkinthemotor #motor #auto